The graph below shows average carbon dioxide (CO) emissions per person in the United Kingdom, Sweden, ltaly and Portugal between 1967 and 2007.Summarise the information by selecting and reporting the main features, andmake comparisons where relevant.

The line graph compares the per capita

carbon

dioxide

emissions

released in four different countries during four decades.

Overall

, it is apparent that the average amount of

carbon

dioxide

emissions

per person in Britain continuously dominated among the four nations,

while

the equivalent figure for Portugal ranked the lowest over the period shown.

Besides

, the number of

emissions

in Sweden and Italy saw a clear upward trend, compared with that of the other two countries. In 1967, Portuguese people released the fewest amount of

carbon

dioxide

, with a figure of about 1 metric tonne. In the following 40 years, the quantity of

carbon

dioxide

emissions

increased remarkably, peaking at approximately 5 metric

tonnes

in 2007.

Similarly

, an obvious increment can

also

be seen in the amount of

this

type of greenhouse gas

emissions

in Italy, almost doubling from 4 in 1967 to roughly 8 metric

tonnes

in 2007.

By contrast

, there was a downward trend in the UK, as the number of

emissions

declined from about 11 to less than 9 metric

tonnes

throughout

this

period of time. Interestingly, in spite of the fluctuation of around 3 metric

tonnes

between 1967 and 1987, the figure for

carbon

dioxide

emissions

per person had decreased since

then

, falling to about 7 metric

tonnes

in 2007.